slimbootloader/BootloaderCorePkg/Library/BootloaderCoreLib/BootloaderCoreLib.c

/** @file

  Copyright (c) 2016 - 2017, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <PiPei.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/BootloaderCoreLib.h>
#include <Guid/FlashMapInfoGuid.h>

/**
  This function retrieves current boot mode.

  @retval    The current boot mode.

**/
UINT8
EFIAPI
GetBootMode (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->BootMode;
}

/**
  Adjust the PCD value based on boot partition.

  If current boot is from 1st boot partition,  return current PCD value.
  if current boot is from 2nd boot partitoin,  adjust the address gap
  between 1st redundant region base and 2nd redundant region base.

  @param[in] PcdValue              The base address getting from PCD

  @retval    UINT32                The adjusted base address.

**/
UINT32
GetAdjustedPcdBase (
  IN UINT32                        PcdValue
  )
{
  UINT32               RedundentBase;
  UINT32               RedundentSize;

  RedundentSize  = PcdGet32 (PcdRedundantRegionSize);
  if (RedundentSize > 0) {
    if (GetCurrentBootPartition () == 1) {
      RedundentBase  = 0 - (PcdGet32 (PcdTopSwapRegionSize) * 2 + RedundentSize);
      if ((PcdValue >= RedundentBase) && (PcdValue < RedundentBase + RedundentSize)) {
        return PcdValue - RedundentSize;
      }
    }
  }
  return PcdValue;
}

/**
  Gets component information from the PCD's.

  This function will look for the component based on the input signature and
  will return the base address and size of the component.

  @param[in]  Signature     Signature of the component information required
  @param[out] Base          Base address of the component
  @param[out] Size          Size of the component

**/
EFI_STATUS
EFIAPI
GetComponentPcdInfo (
  IN  UINT32     Signature,
  OUT UINT32     *Base,
  OUT UINT32     *Size
  )
{
  UINT32        PcdBase;
  UINT32        PcdSize;
  EFI_STATUS    Status;

  Status = EFI_SUCCESS;

  switch (Signature) {
  case FLASH_MAP_SIG_STAGE1A:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdStage1ABase);
    PcdSize = PcdGet32 (PcdStage1ASize);
    break;
  case FLASH_MAP_SIG_STAGE1B:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdStage1BBase);
    PcdSize = PcdGet32 (PcdStage1BSize);
    break;
  case FLASH_MAP_SIG_STAGE2:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdStage2Base);
    PcdSize = PcdGet32 (PcdStage2Size);
    break;
  case FLASH_MAP_SIG_ACM:
    PcdBase = 0xFFFFFFFF;
    PcdSize = 0xFFFFFFFF;
    Status = EFI_NOT_FOUND;
    break;
  case FLASH_MAP_SIG_UCODE:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdUcodeBase);
    PcdSize = PcdGet32 (PcdUcodeSize);
    break;
  case FLASH_MAP_SIG_MRCDATA:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdMrcDataBase);
    PcdSize = PcdGet32 (PcdMrcDataSize);
    break;
  case FLASH_MAP_SIG_PAYLOAD:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdPayloadBase);
    PcdSize = PcdGet32 (PcdPayloadSize);
    break;
  case FLASH_MAP_SIG_SPI_IAS1:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdSpiIasImage1RegionBase);
    PcdSize = PcdGet32 (PcdSpiIasImage1RegionSize);
    break;
  case FLASH_MAP_SIG_SPI_IAS2:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdSpiIasImage2RegionBase);
    PcdSize = PcdGet32 (PcdSpiIasImage2RegionSize);
    break;
  case FLASH_MAP_SIG_FWUPDATE:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdFwuPayloadBase);
    PcdSize = PcdGet32 (PcdFwuPayloadSize);
    break;
  case FLASH_MAP_SIG_CFGDATA:
    PcdBase = PCD_GET32_WITH_ADJUST (PcdCfgDataBase);
    PcdSize = PcdGet32 (PcdCfgDataSize);
    break;
  default:
    PcdBase = 0xFFFFFFFF;
    PcdSize = 0xFFFFFFFF;
    Status = EFI_NOT_FOUND;
  }

  //
  // If base and pcdbase are not 0, fill and return the value
  //
  if ((Base != NULL) && (PcdBase != 0)) {
    *Base = PcdBase;
  }
  if ((Size != NULL) && (PcdSize != 0)) {
    *Size = PcdSize;
  }

  return Status;
}

/**
  This function sets current boot mode.

  @param BootMode   The value of current boot mode to set.

**/
VOID
EFIAPI
SetBootMode (
  IN UINT8   BootMode
  )
{
  LOADER_GLOBAL_DATA  *LdrGlobal;

  LdrGlobal = GetLoaderGlobalDataPointer();
  LdrGlobal->BootMode = (UINT8)BootMode;
}

/**
  This function sets current boot partition.

  @param[in] Partition   The value of current boot partition to set.

**/
VOID
EFIAPI
SetCurrentBootPartition (
  IN UINT8   Partition
  )
{
  LOADER_GLOBAL_DATA  *LdrGlobal;

  LdrGlobal = GetLoaderGlobalDataPointer();
  LdrGlobal->CurrentBootPartition = Partition;
}

/**
  This function retrieves reset reason in last boot.

  @retval    The last boot reset reason.

**/
UINT8
EFIAPI
GetResetReason (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->ResetReason;
}

/**
  This function sets reset reason in last boot.

  @param[in] ResetReason   The value of last boot reset reason.

**/
VOID
EFIAPI
SetResetReason (
  IN UINT8   ResetReason
  )
{
  LOADER_GLOBAL_DATA  *LdrGlobal;

  LdrGlobal = GetLoaderGlobalDataPointer();
  LdrGlobal->ResetReason = ResetReason;
}

/**
  This function retrieves current payload ID to boot.

  @retval    The current payload ID to boot.

**/
UINT32
EFIAPI
GetPayloadId (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->PayloadId;
}

/**
  This function sets current payload ID to boot.

  @param[in] PayloadId   The value of payload ID to boot.

**/
VOID
EFIAPI
SetPayloadId (
  IN UINT32   PayloadId
  )
{
  GetLoaderGlobalDataPointer()->PayloadId = PayloadId;
}

/**
  This function sets current platform id.

  @param PlatformId   The value of current platform id.

**/
VOID
EFIAPI
SetPlatformId (
  IN UINT16   PlatformId
  )
{
  LOADER_GLOBAL_DATA  *LdrGlobal;

  LdrGlobal = GetLoaderGlobalDataPointer();
  LdrGlobal->PlatformId = PlatformId;
}


/**
  This function retrieves current platform BOM id.

  @retval    The current platform BOM id.

**/
UINT16
EFIAPI
GetPlatformBomId (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->PlatformBomId;
}


/**
  This function sets current debug port index.

  @param DebugPortIdx   The debug port index.

**/
VOID
EFIAPI
SetDebugPort (
  IN UINT8   DebugPortIdx
  )
{
  GetLoaderGlobalDataPointer()->DebugPortIdx = DebugPortIdx;
}


/**
  This function gets current debug port index.

  @retval    The current debug port index.

**/
UINT8
EFIAPI
GetDebugPort (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->DebugPortIdx;
}


/**
  This function sets current platform BOM id.

  @param BomId   The value of current platform BOM id.

**/
VOID
EFIAPI
SetPlatformBomId (
  IN UINT16   BomId
  )
{
  ((LOADER_GLOBAL_DATA *)GetLoaderGlobalDataPointer())->PlatformBomId = BomId;
}

/**
  This function retrieves current platform name.

  @retval    The current platform name.

**/
VOID *
EFIAPI
GetPlatformName (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->PlatformName;
}

/**
  This function sets current platform name.

  @param PlatformId   The value of current platform name.

**/
VOID
EFIAPI
SetPlatformName (
  IN VOID     *PlatformName
  )
{
  CopyMem (GetLoaderGlobalDataPointer()->PlatformName, PlatformName, PLATFORM_NAME_SIZE);
}

/**

  Sets the pointer to the HOB List.

  @param HobList                       Pointer to the HOB List.

**/
VOID
EFIAPI
SetHobList (
  IN VOID          *HobList
  )
{
  GetLoaderGlobalDataPointer()->LdrHobList = HobList;
}


/**
  This function retrieves DMA buffer base.

  @retval    DMA buffer base.

**/
VOID *
EFIAPI
GetDmaBufferPtr (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->DmaBufferPtr;
}

/**
  This function retrieves usable memory top.

  @retval    Usable memory top.

**/
UINT32
EFIAPI
GetUsableMemoryTop (
  VOID
  )
{
  return GetLoaderGlobalDataPointer()->MemUsableTop;
}